// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef NET_FTP_FTP_UTIL_H_
#define NET_FTP_FTP_UTIL_H_

#include <string>

#include "base/strings/string16.h"
#include "net/base/net_export.h"

namespace base {
class Time;
}

namespace net {

class NET_EXPORT_PRIVATE FtpUtil {
public:
    // Converts Unix file path to VMS path (must be a file, and not a directory).
    static std::string UnixFilePathToVMS(const std::string& unix_path);

    // Converts Unix directory path to VMS path (must be a directory).
    static std::string UnixDirectoryPathToVMS(const std::string& unix_path);

    // Converts VMS path to Unix-style path.
    static std::string VMSPathToUnix(const std::string& vms_path);

    // Converts abbreviated month (like Nov) to its number (in range 1-12).
    // Note: in some locales abbreviations are more than three letters long,
    // and this function also handles them correctly.
    static bool AbbreviatedMonthToNumber(const base::string16& text, int* number);

    // Converts a "ls -l" date listing to time. The listing comes in three
    // columns. The first one contains month, the second one contains day
    // of month. The third one is either a time (and then we guess the year based
    // on |current_time|), or is a year (and then we don't know the time).
    static bool LsDateListingToTime(const base::string16& month,
        const base::string16& day,
        const base::string16& rest,
        const base::Time& current_time,
        base::Time* result);

    // Converts a Windows date listing to time. Returns true on success.
    static bool WindowsDateListingToTime(const base::string16& date,
        const base::string16& time,
        base::Time* result);

    // Skips |columns| columns from |text| (whitespace-delimited), and returns the
    // remaining part, without leading/trailing whitespace.
    static base::string16 GetStringPartAfterColumns(const base::string16& text,
        int columns);
};

} // namespace net

#endif // NET_FTP_FTP_UTIL_H_
